Wrench



KIMB'ALL RENCH Filed 0 1 29 1923 /Zii- INVENTOR. I mm f? Jfi'mba/J BYATTORNEY.

Patented May 26, 1925.

PATENT OFFICE.

IRWIN P. KIMBALL, OF LOS ANGELES, CALIFORNIA.

WRENCH.

Application filed October 29, 1923. Serial No. 671,448.

T 0 all whom it may concern.

Be it known that I, IRWIN P. KIMBALL, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented certain new and useful Improvements inrenches, of which the following is a specification.

My invention relates to adjustable open end wrenches and the objects arefirst, to construct a wrench that is simple in construction; second, toprovide an open end wrench wherein the jaws may be easily and quicklyadjusted; and third, to construct a wrench that requires a minimumamount of clearance space when turning a nut or simllar parts.

Further objects are to construct a wrench with connected adjustable jawsand a sliding sleeve.

Other objects and advantages will be made manifest in the followingspecification of an embodiment of the invention illustrated in theaccompanying drawings.

I attain these objects by the construction illustrated in theaccompanying drawings, in which:

Figure 1 represents a side view of my wrench.

Figure 2 represents a plan view of Figure 1.

Figure 3 represents a sectional view on line 33 of Figure 1.

Referring to the drawings in which like characters of referencedesignate similar parts, the sleeve 1 and 1 are secured together, andare provided with suitable hearing surfaces for the bars 3 and 9, thesaid bars 3 and 9 being positioned at a predetermined angle to oneanother to provide the required movement of the jaws 4L and 5, and therequired angle of rest hereinafter described, the said jaws 4 and 5being integral with'the end portion of the bars 3 and 9 respectively toform an open end wrench 10, as shown in Figure 1.

The forward outer end of the arm 13 is provided with a slot 1e extendingtransversely of the bar 9 at a slight angle thereto and the sleeve 1 isprovided with a slot 15 extending parallel to the bar 8. A pin 8 securedto the bar 3 projects through the slots 14 and 15. The slot 14: isinclined in the forward and backward direction in which the pin 8travels therein so that the walls of the slot act as a cam on the pinand facilitate its easy movement through the slot so that the pin willnot bind in the slot.

By sliding the sleeve 1-1 forwardly or backwardly on the bars 9 and 3,the engagement of pin 8 with the slots 14- and 15 will cause the jaws 4and 5 to close and open. whereby the jaws are adjusted to a nut or otherobject.

Having thus described my invention what I claim is:

In an open-end wrench, two bars arranged at an angle to each other, jawson one end of said bars respectively, a sleeve through which said barsextend, there being a slot in said sleeve extending parallel to the axisof one of said bars, an arm on the outer bar having a slot extendingtransversely thereof at a slight angle, and a pin secured'in the otherbar and extending through said slots.

In testimony whereof I aflix my signature,

IRIVIN P. KIMBALL.

